How to fix hair particle shading/topology issue?
I'm not sure I entirely understand it, but what I think is going on is that the hairs are set to have &quot;children&quot; and blender is applying a slight rotation to the kink direction of the child hairs via the &quot;Amplitude&quot; value of the kink curl. Setting the value to 0 removes the strange patterning, as does changing the kink type to &quot;nothing&quot;, &quot;radial&quot; and &quot;spiral&quot;. The other options still show artifacts. I still can't fully explain it, but at least this should make it &quot;go away&quot;, if that's what you're after.